Ergonomic handguard combines the light weight and slim profile of the USGI plastic handguard with more comfortable ergonomics and the accessory mounting versatility of aluminum railed handguards. Trapezoidal cross-section and ridges on the underside help the operator maintain a secure grip for better weapon control under stress or during sustained rapid fire. Integral aluminum heat shield protects hand from hot barrel while side extensions and a pronounced lip at the front edge prevent the hand from slipping forward onto the hot gas block. Horizontal slots at the 2 6 and 10 o’clock positions let you install bolt-on accessory rails or MOE Illumination Kit available below exactly Mfg: Magpul SPECS: Reinforced molded polymer Black Dark Earth O.D. Green or Gray. Fits AR-15/M16/M4 rifles equipped with Delta ring and round or triangular handguard cap. Compatible with gas piston conversion systems. Rifle – 12½" (32cm) OAL 2¼" wide 2½" (